Mechanical movement.



No. 759,648. PATENTED MAYr 10, 1904.

A. WAHLE.

MECHANICAL MOVEMENT.

APPLIoATIoN FILED JULY 1o, 1901.

Il'l

I /v I Patented May 10, 1904.

UNITED STATES PATENT OEEICE.

ADOLPH W'AHLE, OF DAVENPORT, IOIVA,

MECHANICAL MOVEMENT.

SPECIFICATION forming part of VLetters Patent No. 759,648, dated May 10,1904.

Application iled July l0, 1901. Serial No. 67,745. (No model.)

To all whom it may concern:

Be it known that I, ADoLrH VVAHLE, a citi- Zen of the United States,anda resident of Davenport, in the county of Scott and State of Iowa,have invented certain new and useful Improvements in MechanicalMovements, of which the following' is a full, clear, and exactspeciiication.

My invention relates to mechanical movements for converting a continuousrotary movement into a reciprocating rotary movement for use in avariety of machines, such as ehurns, washing-machines, or the like.

My invention consists in the matters hereinafter set forth, and moreparticularly pointed out in the claims.

In the drawings, Figure 1 is a View in side elevation of my' invention,illustrating its application to a washing-machine, the upper portiononly of the latter being shown and this in section. Fig. 2 is a view inside elevation of the translating devices, the remainder of themechanism being removed, the point of view being opposite to that ofFig. 1. Fig. 3 is a view in end elevation of the parts shown in Fig. 2.

Referring to the drawings, a drive-wheel A is shown as journaled on astud projecting from one end of a main supportiiig-frame B and ascommunicating its continuous rotary motion to a drive-shaft F throughthe medium of a pinion D, secured concentrically to the hub of thedrive-wheel, and a gear E on the adjacent end of said drive-shaft inmesh with said pinion. If desired, the drive-wheel can be secureddirectly to the end of the driveshaft, its connection therewith, asshown in the drawings, being simply for the purpose of increasing thepower transmitted to the drive-shaft. Said drive-shaft F is revolublysecured in bearings on the frame B, and at its end portion remote fromthe gear It, which projects through and beyond the bearing it isprovided with an angular dellectionf, which forms an oifset or bend, thereturn leg or stretch of which, hereinafter designated as the angularextension If', is in a plane oblique to the axis of the shaft F, whichlatter' intersects it, preferably at its center of length. As aconsequence of the Obliquity of position of the angular extension f' therotation of the main shaft of the shaft F causes the angular extensionto describe by its movement a double cone, and a section taken on aplane of the axis of the straight portion of the shaft F through thepath of motion of said angular extension shows an angular oscillatorymotion of said extension. The purpose of my invention is to convert thisangular movement of the extension into an oseillatory reciprocatingmotion, eliminating the effect ofthe rotary motion of the extensionaround the shaft-axis. To this endl secure on said extension f a sleeveJ in such a manner as to revolve freely thereon,while at the same timepreventing' longitudinal displacement thereof. As a convenient meansofeffecting this a feather-pin y' is employed, which secured to andprojects radially from said angular extension into an annular groove orlreywayj, which is formed on the interior surface of the sleeve and fora portion of its circumference extends entirely through the wall of thesleeve in order to form a slot through which the pin may be insertedwhen the sleeve is positioned on the extension. Obviously, however, anyother well-known mechanical device may be employed to secure the sleeveJ against longitudinal displacement.

Projecting from sleeve J', at an angle of about ninety degrees to theplane of its pivotal contact with extension j", is an arm K, whichextends sidewise and then downward in a transverse plane strikingthrough the point where the axes of the straight portion of shaft and ofsaid extension intersect. The end portion of said arm l( farthest fromsleeve .I is preferably cylindrical and is journaled in a plane at rightangles to the axis of said sleeve in a pivotal socket formed in the webof a segmental rack L. lihe segmental edge of rack L extends beyond theteeth of said rack and. is seated and has a sliding peripheral movementin the correspondingly-curved runway di of the track f, which latter isintegral with the base-plate of the supporting-frame Band arranged in aplane parallel with the axis of the drive-shaft F. The motion impartedto the segmental rack by the angular extension j" through the medium ofarm K causes it to os- IOO section or the center of oscillation of saidangular extension. In order to allow perfect freedom of motion betweensaid arm K and the rack L, I adapt the outer portion of the arm K tohave rotating' engagement in said socket, thereby effectually providing.for unequal wear or accidental distortion. To convert this oscillatingreciprocal motion of the circular rack L into a reciprocating motion, Imesh therewith a gear H, which is secured, as illustrated in thedrawings, on a shaft G, which latter is revolubly secured in bearing's52 and Z13 on the main frame B. As shown in the drawings, said shaft Gris mounted at right angles to the drive-shaft F; but it is obvious thatit may be secured at any angle to the shaft F, so long as it lies in aplane permitting proper engagement of the gear H and rack L.

The operation of the mechanism as a whole is obvious. A continuousrotary motion is imparted by the driving-wheel A to the driving-shaft F.The movement of the latter causes the rotation of the angular extensionand at the same time an angular or rocking motion of the latter on itscenter of oscillation, which latter, as before stated, corresponds tothe intersection of the axes of the two parts of the shaft. Saidangular' or rocking movement is communicated to the sleeve J and itsprojecting arm K, and these in turn impart an oscillatory motion to thecurved rack L. The latter therefore is caused to move reciprocally inits runway, and so imparts a reciprocal rotary motion to the gear H andthe shaft Gr.

There is an absence of the usually employed gears and resultant decreasein loss of power by friction, while it is evident that the parts may beconstructed and assembled very easily.

I claim as my invention- 1. A device for the purposes stated comprisinga continuously-rotating shaft, a portion of said shaft being bent at anangle oblique to the main portion of the shaft, an oscillating' curvedrack, having a socket extending radially from the inner edge thereof, asleeve rotatively secured on said oblique portion of the shaft, an armextending from said sleeve having' rotative engagement with said socket,and a reciprocating rotary shaft actuated by said rack.

2. A device for the purpose as stated, comprising acontinuously-revolving main shaft, having' a crank whose axis is obliquethereto and is intersected by the axis of said shaft at a point mediateits ends, a segmental gear adapted to oscillate in a vertical planeparallel to the main shaft, the axis of said segmental gear passingthrough the point of intersection of the axes of said shaft and crank, apinion adapted to mesh withsaid gear, a sleeve rotatively secured onsaidcrank, an `arm secured to and projecting from said sleeve the axisof said sleeve being at the point of intersection of the axes of saidshaft and crank, said arm having rotative engagement in aradially-extending socket of said segmental gear.

3. A device for the purposes stated, comprising a continuously-revolvingmain shaft having a crank whose axis is oblique thereto and isintersected by the axis of said shaft at a Apoint mediate its ends, asegmental gear adapted to oscillate in a vertical plane parallel to themain shaft, the axis of said segmental gear passing through the point ofintersection of the axes of said shaft and crank, a rotary reciprocatingpinion the transverse plane of the perpendicular axis of whichintersects the point of intersection of the axes of said shaft and crankand is engaged by said gear, a sleeve rotatively secured on said crank,an arm secured to and projecting from said sleeve the axis of saidsleeve being at the point of intersection ofthe axes of said shaft andcrank, said arm having rotative engagement in a radially extending'socket of said segmental gear.

4. Adevice for the purposes stated comprising a continuously-revolvingmain shaft, having an integral crank formed by a return-oset thereinextending at an oblique angle to said shaft, the axes of which and saidshaft intersect at a point mediate the ends of the crank, a segmentalgear adapted to oscillate in a vertical plane parallel to the main-shaftaxis, the axis of said segmental gear passing' through the point ofintersection of the axes of said shaft and crank, and which oscillatesperpendicular to the plane of said shaft, a rotary reciprocatory pinionadapted to mesh with said segmental gear, and means carried by saidcrank and engaging said gear in planes transverse to each other fortransmitting the angular' movement of said crank to said gear.

5. Adevice for the purposes stated,compris ing a main frame, acontinuously-revolving main shaft having' a crank the axis of which isoblique to the axis of said shaft and isintersected by the latter at apoint mediate its ends, a segmental gear oscillating' in a verticalplane parallel to the main shaft, the axis -of said segmental gearpassing through the point of intersection of the axes of said shaft andcrank, a rotary reciprocatory pinion adapted to mesh with said gear,means on said frame to movabl y retain said gear in mesh with saidpinion, and means engaging said gear in planes transverse to each otherand transmitting the angular movement of said crank to said gear.

ADOLPH IAHLE. Vitnesses:

IVM. W. VAHLE, Louis L. IVAHLE.Y

TOO

I'IO

IIS

